The European Space Agency has released a Mars Express flyover video of Schiaparelli Crater, one of the largest craters on Mars. The crater measures 460 km across but appears relatively shallow, possibly because sediment carried by wind or water, lava, or a combination of these has filled it over the past few billion years.
The crater is named after Italian astronomer Giovanni Schiaparelli (1835–1910), best known for his observations of Mars. During the 1877 "Great Opposition," when Mars passed close to Earth, he mapped the planet and recorded straight dark lines he took to be natural water-filled channels, using the Italian word "canali." Other astronomers interpreted the term as artificial canals, leading some to believe intelligent Martians had built them. Such features are now understood as illusions produced by the relatively poor telescopes of the time. Water is still thought to have once been present in the region, perhaps as a lake, and the crater is the final destination of astronaut Mark Watney in Andy Weir's novel "The Martian."
The film was made from Mars Express High Resolution Stereo Camera image mosaics combined with digital terrain model topography to create a three-dimensional landscape. It is presented with an audio guide.



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